What Is the Red Layer at Stevns Klint Denmark Hiding?
🕐 7 min read | 🌍 Natural Wonders 🔒 Key Takeaways The red KT layer at Stevns Klint is a 1-3mm band of iridium-rich clay deposited 66 million years ago when a meteor struck Earth This boundary marks the extinction of 75% of all species, including non-avian dinosaurs, within hours to days The layer contains shocked quartz crystals and spherules of vaporized asteroid material—physical proof of impact Stevns Klint preserves the most pristine KT boundary exposure on Earth, with fossils dating before and after the extinction event High above the Baltic Sea, Denmark's Stevns Klint cliff face holds one of Earth's most extraordinary secrets: a razor-thin red layer that records the exact moment dinosaurs vanished. This unassuming band of rust-colored clay, barely wider than your finger, marks the Cretaceous-Paleogene (KT) boundary—the instant a 10-kilometer asteroid transformed our planet. Geologists call it the most pristine window into the worst day in Earth's histo...